Perspective drawings give the most professional touch of the showing architecture ideas. The architects are practicing this way of drawing a lot and make their ideas more valuated in the eyes of the public. Making the normal drawing shown in a two points drawing is making the image closer to the real sight of people.

Perspective Drawing Based on Two Points of the Horizon

The way this drawing is made on an outdoor sequence is a good presentation how this drawing type is made. Take a look and be prepared to learn something new from the world of the architects. Good luck!